Cause of death was stab wound to the heart, police said
TokyoReporter
At the time of his escape, the fugitive was wearing a dark blue shirt and camouflage-pattern pants
Suspect got to know the boy through a social-networking service, police said
Gender of the infant is not known, police said
Suspect told police, 'I wanted to satisfy my curiosity'
Suspect admits to the allegations, police said
Case is being treated as murder
Suspect told police, 'I did it because a girl with a face I liked boarded the train'
Investigative source: 'Cocaine is regularly used by foreigners, but in recent years it has become widespread in Japan'
Suspect denies the allegations, telling police, 'I just gave a massage'